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authorNeale Ranns <nranns@cisco.com>2018-02-12 08:36:11 -0800
committerOle Trøan <otroan@employees.org>2018-02-15 14:22:33 +0000
commit8b30e471df4d42214619e1d6c50cc8298426b45f (patch)
treefc2421ebfcfdbc7651d16d3de323a69da2393efe /src/vnet/adj
parent07510dd1a812fe064c8d44dd25e6c8a598a709cf (diff)
Allow interface types to override glean adjacency behaivour
update the glean adj on a local interface MAC change Change-Id: Ia5c5cde424ed0fea3431532cc5abf22b364bbab5 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/adj')
-rw-r--r--src/vnet/adj/adj_glean.c60
-rw-r--r--src/vnet/adj/adj_glean.h19
-rw-r--r--src/vnet/adj/adj_internal.h15
-rw-r--r--src/vnet/adj/adj_midchain.c5
-rw-r--r--src/vnet/adj/adj_nbr.c15
5 files changed, 82 insertions, 32 deletions
diff --git a/src/vnet/adj/adj_glean.c b/src/vnet/adj/adj_glean.c
index 82023f12dd2..09e6c0a0da9 100644
--- a/src/vnet/adj/adj_glean.c
+++ b/src/vnet/adj/adj_glean.c
@@ -68,26 +68,51 @@ adj_glean_add_or_lock (fib_protocol_t proto,
adj->sub_type.glean.receive_addr = *nh_addr;
}
+ adj->rewrite_header.sw_if_index = sw_if_index;
adj->rewrite_header.data_bytes = 0;
+ adj_lock(adj_get_index(adj));
- vnet_rewrite_for_sw_interface(vnet_get_main(),
- adj_fib_proto_2_nd(proto),
- sw_if_index,
- adj_get_glean_node(proto)->index,
- VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
+ vnet_update_adjacency_for_sw_interface(vnet_get_main(),
+ sw_if_index,
+ adj_get_index(adj));
}
else
{
adj = adj_get(adj_gleans[proto][sw_if_index]);
+ adj_lock(adj_get_index(adj));
}
- adj_lock(adj_get_index(adj));
-
return (adj_get_index(adj));
}
+/**
+ * adj_glean_update_rewrite
+ */
+void
+adj_glean_update_rewrite (adj_index_t adj_index)
+{
+ ip_adjacency_t *adj;
+
+ ASSERT(ADJ_INDEX_INVALID != adj_index);
+
+ adj = adj_get(adj_index);
+
+ vnet_rewrite_for_sw_interface(vnet_get_main(),
+ adj_fib_proto_2_nd(adj->ia_nh_proto),
+ adj->rewrite_header.sw_if_index,
+ adj_get_glean_node(adj->ia_nh_proto)->index,
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
+ &adj->rewrite_header,
+ sizeof (adj->rewrite_data));
+}
+
+adj_index_t
+adj_glean_get (fib_protocol_t proto,
+ u32 sw_if_index)
+{
+ return (adj_gleans[proto][sw_if_index]);
+}
+
void
adj_glean_remove (fib_protocol_t proto,
u32 sw_if_index)
@@ -227,12 +252,17 @@ format_adj_glean (u8* s, va_list *ap)
vnet_main_t * vnm = vnet_get_main();
ip_adjacency_t * adj = adj_get(index);
- return (format(s, "%U-glean: %U",
- format_fib_protocol, adj->ia_nh_proto,
- format_vnet_sw_interface_name,
- vnm,
- vnet_get_sw_interface(vnm,
- adj->rewrite_header.sw_if_index)));
+ s = format(s, "%U-glean: %U",
+ format_fib_protocol, adj->ia_nh_proto,
+ format_vnet_sw_interface_name,
+ vnm,
+ vnet_get_sw_interface(vnm,
+ adj->rewrite_header.sw_if_index));
+ s = format (s, " %U",
+ format_vnet_rewrite,
+ &adj->rewrite_header, sizeof (adj->rewrite_data), 0);
+
+ return (s);
}
diff --git a/src/vnet/adj/adj_glean.h b/src/vnet/adj/adj_glean.h
index 640bd2f91eb..47cddfbed2b 100644
--- a/src/vnet/adj/adj_glean.h
+++ b/src/vnet/adj/adj_glean.h
@@ -48,6 +48,25 @@ extern adj_index_t adj_glean_add_or_lock(fib_protocol_t proto,
const ip46_address_t *nh_addr);
/**
+ * @brief Get an existing glean
+ *
+ * @return INVALID if it does not exist
+ */
+extern adj_index_t adj_glean_get(fib_protocol_t proto,
+ u32 sw_if_index);
+
+/**
+ * adj_glean_update_rewrite
+ *
+ * Called by an adjacency provider (an interface type) to configure
+ * a glean adj (i.e. and adjacency linked to a connected prefix) to
+ * its default behaviour.
+ * Other interface types (i.e. 6RD tunnels) can can choose not to use
+ * glean behaviour on an adjacency liked to a connected prefix.
+ */
+extern void adj_glean_update_rewrite(adj_index_t adj_index);
+
+/**
* @brief Format/display a glean adjacency.
*/
extern u8* format_adj_glean(u8* s, va_list *ap);
diff --git a/src/vnet/adj/adj_internal.h b/src/vnet/adj/adj_internal.h
index e6d276e4d02..3b7ddb2f10c 100644
--- a/src/vnet/adj/adj_internal.h
+++ b/src/vnet/adj/adj_internal.h
@@ -78,6 +78,21 @@ adj_fib_proto_2_nd (fib_protocol_t fp)
return (0);
}
+static inline ip46_type_t
+adj_proto_to_46 (fib_protocol_t proto)
+{
+ switch (proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ return (IP46_TYPE_IP4);
+ case FIB_PROTOCOL_IP6:
+ return (IP46_TYPE_IP6);
+ default:
+ return (IP46_TYPE_IP4);
+ }
+ return (IP46_TYPE_IP4);
+}
+
/**
* @brief
* Get a pointer to an adjacency object from its index
diff --git a/src/vnet/adj/adj_midchain.c b/src/vnet/adj/adj_midchain.c
index 9fd3246b15a..b32a0e4f2f7 100644
--- a/src/vnet/adj/adj_midchain.c
+++ b/src/vnet/adj/adj_midchain.c
@@ -590,8 +590,9 @@ format_adj_midchain (u8* s, va_list *ap)
ip_adjacency_t * adj = adj_get(index);
s = format (s, "%U", format_vnet_link, adj->ia_link);
- s = format (s, " via %U ",
- format_ip46_address, &adj->sub_type.nbr.next_hop);
+ s = format (s, " via %U",
+ format_ip46_address, &adj->sub_type.nbr.next_hop,
+ adj_proto_to_46(adj->ia_nh_proto));
s = format (s, " %U",
format_vnet_rewrite,
&adj->rewrite_header, sizeof (adj->rewrite_data), indent);
diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index fc7a7fcd93c..97940da0271 100644
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -968,21 +968,6 @@ VLIB_CLI_COMMAND (ip4_show_fib_command, static) = {
.function = adj_nbr_show,
};
-static ip46_type_t
-adj_proto_to_46 (fib_protocol_t proto)
-{
- switch (proto)
- {
- case FIB_PROTOCOL_IP4:
- return (IP46_TYPE_IP4);
- case FIB_PROTOCOL_IP6:
- return (IP46_TYPE_IP6);
- default:
- return (IP46_TYPE_IP4);
- }
- return (IP46_TYPE_IP4);
-}
-
u8*
format_adj_nbr_incomplete (u8* s, va_list *ap)
{